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Transformation of CuOx/TiO2 Photocatalysts During CO2 Reduction Full article

Journal Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779
Output data Year: 2025, Volume: 66, Number: 3, Pages: 603–611 Pages count : 9 DOI: 10.1134/S0022476625030163
Tags photocatalysis, photocatalyst, X-ray absorption spectroscopy, XANES, copper, copper(I) oxide, copper(II) oxide
Authors Saraev A.A. 1,2 , Kurenkova A.Y. 1 , Kozlova E.A. 1
Affiliations
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2 Synchrotron Radiation Facility - Siberian Circular Photon Source of the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Koltsovo, Russia

Funding (1)

1 Ministry of Science and Higher Education of the Russian Federation 075-15-2022-263

Abstract: Photocatalytic processes utilizing the energy of light quanta to synthesize valuable compounds are studied quite widely, but particular attention is paid to the development of effective and stable photocatalysts. The present study considers the transformation of photocatalysts based on TiO2 modified with copper and its oxide compounds (CuOx) in the conditions of CO2 reduction under the LED irradiation (397 nm). The influence of TiO2 precalcination on the state of the copper cocatalyst is demonstrated. It is shown by in situ X-ray absorption (XANES) that modifying the calcined TiO2 photocatalyst with copper results in higher content of (0) and (1+) copper sates than in the case of the non-calcined photocatalyst. It is established that the fraction of metal copper in both photocatalysts increases during the reaction due to the accumulation of photogenerated electrons on the copper cocatalyst.
Cite: Saraev A.A. , Kurenkova A.Y. , Kozlova E.A.
Transformation of CuOx/TiO2 Photocatalysts During CO2 Reduction
Journal of Structural Chemistry. 2025. V.66. N3. P.603–611. DOI: 10.1134/S0022476625030163 WOS Scopus РИНЦ AN OpenAlex
Original: Сараев А.А. , Куренкова А.Ю. , Козлова Е.А.
Трансформация фотокатализаторов CuOx/TiO2 в условиях процесса восстановления СО2
Журнал структурной химии. 2025. Т.66. №3. 142329 :1-10. DOI: 10.26902/jsc_id142329 РИНЦ OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
Submitted: Nov 22, 2024
Accepted: Dec 2, 2024
Published print: Mar 28, 2025
Published online: Mar 28, 2025
Identifiers:
Web of science: WOS:001456015300013
Scopus: 2-s2.0-105001261939
Elibrary: 80616363
Chemical Abstracts: 2025:791568
OpenAlex: W4408967617
Citing: Пока нет цитирований
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